In short: Drums of sodium hydrosulphite from a Savage River mine came into contact with water and began leaking at the Veolia Waste Management plant in Spreyton, south of Devonport. Drums of sodium hydrosulphite from a Savage River mine came into contact with water and began leaking at the Veolia Waste Management plant in Spreyton, south of Devonport. Tasmanian authorities …